The set of all entire function of exponential type \(V\)  is denoted
by \(B_V\) .
The set \(B_V\)  was defined by Stein and Weiss
[1]}.
For \(V=\Pi ^m_{\sigma },\,V=Q^m_M,\)  and \(V={\mathfrak {B}}^m_M\) ,
similar
sets of entire functions were
defined by Bernstein [2]} and Nikolskii
[3]}, [4]}, see also
[5]}.
Properties of functions from \(B_V\)  have been investigated in numerous
publications (see, e.g., [2]}, [3]}, [4]}, [1]}, [10]}, [11]}, [12]}, [13]} and
references therein).
